For a glow you should invest in some vitamin c serum or pure vitamin c powder and bath with it, add to your citrus drinks and make skincare masques of it. But you cant let it stay out for long because vitamin c has a short shelf life which is why it is suggested you take the powder in with you as you wash your face to use after wetting your face and intake a supplement on the inside. You will glow.

Collagen powder will help reduce fine lines and make your skin young looking and plump.
Drinking green tea of the highest quality like matcha will detoxify your body and keep your skin clear.

I agree with one of the commentators that you have to go for some vitamin C serum. You may also see Dr. Eric Schweige, a Board Certified Dermatologist for great tips on achieving glowing skin. You may also check out http://www.nyccosmeticdermatology.com/cellulaze.htm for more beauty ideas.

There are various you can apply to get a glowing skin. Sun screen, lotion , Night And Day Cream are various which can be opted. However, in cases of there are further ways as the men skin is different from female. Check out here tips for glowing skin in men: http://www.medstorerx.com/beauty-and-skin/how-men-can-have-glowing-and-healthy-skin.aspx

To protect the skin a sunblock with zinc oxide or titanium oxide is suggested for maximum protection.